ruby: allow function definition in slicc structs

This patch adds support for function definitions to appear in slicc structs.
This is required for supporting functional accesses for different types of
messages. Subsequent patches will use this to development.

1 files changed, 16 insertions, 3 deletions

diff --git a/src/mem/slicc/parser.py b/src/mem/slicc/parser.py
index 6b6a1aaef..78b842f74 100644
--- a/src/mem/slicc/parser.py
+++ b/src/mem/slicc/parser.py
@@ -315,14 +315,23 @@ class SLICC(Grammar):
         "decl : type ident pairs SEMI"
         p[0] = ast.ObjDeclAST(self, p[1], p[2], p[3])
 
+    # Function definition and declaration
     def p_decl__func_decl(self, p):
-        """decl : void ident '(' params ')' pairs SEMI
+        "decl : func_decl"
+        p[0] = p[1]
+
+    def p_func_decl__0(self, p):
+        """func_decl :  void ident '(' params ')' pairs SEMI
                 | type ident '(' params ')' pairs SEMI"""
         p[0] = ast.FuncDeclAST(self, p[1], p[2], p[4], p[6], None)
 
     def p_decl__func_def(self, p):
-        """decl : void ident '(' params ')' pairs statements
-                | type ident '(' params ')' pairs statements"""
+        "decl : func_def"
+        p[0] = p[1]
+
+    def p_func_def__0(self, p):
+        """func_def : void ident '(' params ')' pairs statements
+            | type ident '(' params ')' pairs statements"""
         p[0] = ast.FuncDeclAST(self, p[1], p[2], p[4], p[6], p[7])
 
     # Type fields
@@ -338,6 +347,10 @@ class SLICC(Grammar):
         "type_member : type_or_void ident '(' types ')' pairs SEMI"
         p[0] = ast.TypeFieldMethodAST(self, p[1], p[2], p[4], p[6])
 
+    def p_type_method__1(self, p):
+        "type_member : type_or_void ident '(' params ')' pairs statements"
+        p[0] = ast.FuncDeclAST(self, p[1], p[2], p[4], p[6], p[7])
+
     def p_type_member__1(self, p):
         "type_member : type_or_void ident pairs SEMI"
         p[0] = ast.TypeFieldMemberAST(self, p[1], p[2], p[3], None)